fix build error

ovirt-hosted-engine-setup.spec

@@ -8,7 +8,7 @@
 
 Name:           ovirt-hosted-engine-setup
 Version:        2.4.5
-Release:        1
+Release:        2
 Summary:        oVirt Hosted Engine setup tool
 License:        LGPLv2+
 URL:            http://www.ovirt.org
@@ -60,6 +60,7 @@ Hosted Engine setup tool for oVirt project.
 %setup -q -n %{name}-%{package_version}
 
 %build
+export PYTHON=python3
 %configure \
         --docdir="%{_docdir}/%{name}-%{version}" \
         --disable-python-syntax-check \
@@ -111,5 +112,8 @@ print((
 ' > %{_sysconfdir}/ovirt-hosted-engine/virsh_auth.conf
 
 %changelog
+* Thu Sep 16 2021 wangyue <wangyue92@huawei.com> - 2.4.5-2
+- fix build error
+
 * Wed Sep 15 2021 wutao <wutao61@huawei.com> - 2.4.5-1
 - Package init